<template>
  <div>
    <div class="menu_aside">
      <el-menu
        default-active="2"
        class="el-menu-vertical-demo"
        @open="handleOpen"
        @close="handleClose"
        background-color="#D3DCE6"
        text-color="#000"
        active-text-color="#3E95FD"
        router
      >
        <el-submenu index="1">
          <template slot="title">
            <i class="el-icon-folder"></i>
            <span>学生信息录入及查询</span>
          </template>
          <el-menu-item index="/home/stuInfoEntry">学生信息录入</el-menu-item>
          <el-menu-item index="/home/stuInfoSelect">学生信息查询</el-menu-item>
        </el-submenu>
        <el-submenu index="2">
          <template slot="title">
            <i class="el-icon-s-data"></i>
            <span>成绩录入及查询</span>
          </template>
          <el-menu-item-group>
            <template slot="title">入学</template>
            <el-menu-item index="/index/entryGradeInput"
              >入学成绩录入</el-menu-item
            >
            <el-menu-item index="/index/entryGradeSelect"
              >入学成绩查询</el-menu-item
            >
          </el-menu-item-group>
          <el-menu-item-group>
            <template slot="title">期中</template>
            <el-menu-item index="/index/midGradeInput"
              >期中成绩录入</el-menu-item
            >
            <el-menu-item index="/index/midGradeSelect"
              >期中成绩查询</el-menu-item
            >
          </el-menu-item-group>
          <el-menu-item-group>
            <template slot="title">期末</template>
            <el-menu-item index="/index/endGradeInput"
              >期末成绩录入</el-menu-item
            >
            <el-menu-item index="/index/endGradeSelect"
              >期末成绩查询</el-menu-item
            >
          </el-menu-item-group>
        </el-submenu>
        <el-menu-item index="/index/gradeAnalysis">
          <i class="el-icon-menu"></i>
          <span slot="title">成绩分析</span>
        </el-menu-item>
      </el-menu>
    </div>
  </div>
</template>

<script>
import { Menu, MenuItem, Submenu, MenuItemGroup } from "element-ui";
export default {
  components: {
    "el-menu": Menu,
    "el-menu-item": MenuItem,
    "el-submenu": Submenu,
    "el-menu-item-group": MenuItemGroup,
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
  },
};
</script>

<style lang="scss">
div {
  .menu_aside {
    font-size: 50px;
  }
}
</style>